Using the Devices Latency Dashboard

You use the Devices Latency Dashboard to view device-level latency and packet quality metrics in a single, scannable table. From here, you can monitor real-time and historical latency, identify devices with packet loss or jitter concerns, and prioritize troubleshooting.

The dashboard consists of a single panel, titled Devices Latency Table, which is a customizable OpenSearch Dashboards table.

Devices Latency Table

This panel shows a table in which each row represents a device. The table includes the following columns:

Device Name: The unique device name.
Customer: The customer identifier or name associated with the device.
IPv4: The IPv4 address assigned to the device.
Max Latency: The highest recorded latency value during the selected time range.
Avg Latency: The mean latency observed during the selected time range.
Min Latency: The lowest recorded latency value during the selected time range.
Max Packet Loss: The highest recorded packet loss percentage value during the selected time range.
Avg Packet Loss: The percentage of packets lost on average during the selected time range, indicating link reliability and stability.
Min Packet Loss: The lowest recorded packet loss percentage value during the selected time range.

You can sort the table by Device Name. You can also customize the table by adding additional metadata or metrics columns, or removing columns that are not relevant to your use case.

Interpreting the Metrics

The following are some common examples of observed metrics, and their interpretations:

If a device shows rising average latency and stable packet loss, it indicates congestion or path changes. You must investigate interface utilization and routing.
If a device shows short-lived spikes in maximum latency and jitter values, it is likely due to transient events like maintenance, route reconvergence, bursts of traffic, or QoS policing moments. Correlate these spikes with known maintenance windows, traffic bursts, or QoS events to confirm that they are temporary and expected issues.
If a device shows persistent packet loss, investigate physical links, duplex mismatches, ACL/firewall ICMP handling, and rate limits on control-plane policing.

Title and Copyright Information

Network Performance Management Reporting Guide

G49449-01